Ratcheting Behavior of Pressurized Elbow Pipe under Different Loading Modes

摘要：

　　Ratcheting deformation is studied on elbow pipe made of Z2CND18.12N by FEM software.The simulation is conducted by ANSYS.Chen-Jiao-Kim (CJK) kinematic hardening model is embedded in ANSYS for the study.The elbow pipe is subjected to internal pressure and reversed in-plane bending.Internal pressure can be constant or cyclic.Many different loading paths are used in the study.Ratcheting deformations under different loading paths are studied.The result shows that ratcheting deformation occurs mainly in the circumferential direction.Ratcheting deformation at the crown and intrados of elbow pipe is more notable because of higher stress.Tensile or compressed load can influence the position of dangerous point.It is found that ratcheting deformations under different loading paths with same peak load are different.

关键词： ratcheting elbow piping cyclic loading Z2CND18.12

作者: Weiqiang Qu Xu Chen

作者单位: School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,P.R.China

会议类型: 国际会议

会议名称: 2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)

会议地点: 天津

会议语种:英文

页码: 322-327

在线出版日期: 2016-05-26（万方平台首次上网日期，不代表论文的发表时间）